ANALYTICAL: Discrete analyzer - Seal AQ2


The AQ2 system is a flexible automated analyzer that uses the principle of discrete analysis, where each test occurs in a separate or discrete reaction vessel. The AQ2 is ideal for measuring dissolved nutrients and other constituents in aqueous samples, extracts and digestions. It is most useful when many and varied tests are needed on different samples and/or individual results are needed immediately. The sample and reagents are incubated in the reaction wells for a pre-programmed time. A single aliquot is then transferred into a 10 mm 100% optical glass cuvette. The absorbance is read on the stationary reactant to ensure the best possible signal to noise ratio. Methods include: ammonia, chloride, nitrate/nitrite, nitrite, total nitrogen, total phosphorus, ortho-phosphate, and sulfate.

  • Discrete reaction vessel colorimetric analysis for nutrients in aqueous, extracts and digestions
ASU Unit
Knowledge Enterprise
Service ASU rate Nonprofit/other academic rate Notes
Setup fee $25/analyte $35/analyte Setup includes calibration, QC and blank analyses
Analysis $2.25/sample/analyte $15/sample/analyte